mission. its contract with the u.s. agency nasa is worth $1.6 billion. the dragon capsule is now heading toward the international space station, but nasa is no longer in space. countries like china and india are racing to catch up. with commercial partners like spacex, nasa is now free to focus on its new mission, racing to mars. >> what i call a historical event in the annals of space flight. the spacex launch tonight marks the official start of commercial resupply missions by american companies operating out u.s. spaceports like the one right here in florida. >> reporter: bolden said nasa officials need to spend their limited funds carefully. he said americans need to nurture the next generation to keep their leadership and development of space. sara zelkovic, nhk world, florida.